Ok, what would you expect the results to be? Probably not what they were:

There was no difference in bacterial counts between those who did the normal hand wash vs. the medical hand wash

Purell significantly reduced bacterial count, but was the only method in which fungus (yes, fungus) grew out - apparently the alcohol kills off some of the bacteria, but does nothing against fungi (viruses were not tested for in this study). Also, no dirt is washed away, it is just moved around (no rinsing).

Ivory soap outperformed antibacterial soap and Purell both

The significant factor seemed to be the high soap content of Ivory, which caused a high degree of sudsing. The suds are the key!

This research has not been published yet - I will add a reference when it is.